Medicare Frequently Asked Questions

Last Updated: May 2025 Print This Article

Navigating Medicare can feel overwhelming, but we’re here to help with clear answers to common questions—including Medicare basics, eligibility, enrollment, coverage choices and tips for unique situations. We’ve also included helpful resources and contacts so you can confidently make the best choices for your health coverage needs.

Medicare is a government health insurance program designed mostly for older adults to help pay for health-related services. It includes several parts and coverage options.

  • Parts A and B are the two parts that make up Original Medicare. Part A covers hospital (inpatient care), and Part B covers medical (doctor visits, outpatient care).
  • Part D helps pay for prescription medications. You don’t have to sign up for it, but it’s a good idea if you take prescription drugs. If you decide to enroll after you first become eligible, you may have to pay extra. Part D can be a separate plan added to Original Medicare or included in a Medicare Advantage plan.
  • Medicare Advantage (Part C) is a type of Medicare plan offered by private insurance companies to provide hospital, medical and usually prescription drugs. Many plans include extras like dental, vision, hearing and more.
  • Medicare Supplement (Med Supp or Medigap) plans are sold by private insurance companies to help pay for deductibles, copays, coinsurance and services not covered by Original Medicare.

To be eligible for Medicare, you must be a permanent U.S. resident or legal citizen living in the U.S. for five years in a row.

Plus, you’ll need to meet one of the following requirements:

  • Age 65 or older
  • Under age 65 and have a qualifying disability
  • Anyone with ALS (Lou Gehrig’s disease) or End-Stage Renal Disease (ESRD)

Initial Enrollment Period (IEP)

Sign up for Medicare for the first time.

Initial Enrollment PeriodInitial Enrollment Period

Annual Enrollment Period (AEP)

Switch, drop or join a different Medicare plan.*

Annual Enrollment PeriodAnnual Enrollment Period

Medicare Advantage Open Enrollment Period (MA OEP)

Make a one-time election to change your Medicare Advantage plan.*

Medicare Advantage Open Enrollment PeriodMedicare Advantage Open Enrollment Period

Special Enrollment Period (SEP)

Enroll in a Medicare plan if you qualify.**

Special Enrollment Period Special Enrollment Period


* You can also switch to Original Medicare as well as add or drop Part D coverage. The MA OEP is only available if you’re already in a Medicare Advantage plan.

** Examples of when you’d qualify include a recent move, leaving employer or union coverage, or having a 5-star-rated plan available in your area.

You have several options when you’re ready to enroll.

Original Medicare (Parts A and B) + Prescription drugs (Part D)

Original Medicare (Parts A and B) + Prescription drugs (Part D)

Original Medicare (Parts A and B) + Prescription drugs (Part D) + Med Supp

Original Medicare (Parts A and B) + Prescription drugs (Part D) + Med Supp

Medicare Advantage (Part C)

Medicare Advantage (Part C)

To help with your research on each option, check out the following articles.

Navigating Medicare: You Have Options

Research to Find Your Ideal Medicare Plan

Compare Your Options: Med Supp and Medicare Advantage

How to Pick the Best Medicare Health Insurance Plan in Your Area

Top 10 Things to Know Before Enrolling in Medicare

No, you won’t lose your Original Medicare (hospital and medical) coverage if you join that type of plan. They work in combination with Original Medicare.

Medicare Advantage provides extra benefits, like dental, vision, hearing and more. It helps control Original Medicare costs with fixed copays or coinsurance, has a maximum out-of-pocket limit, and most plans don’t have deductibles.

Med Supp plans help manage healthcare expenses by covering additional costs like copays, coinsurance and deductibles.

Essence Healthcare
Our licensed advisors are ready to answer your questions at any stage of your journey.
Toll-free: 1-866-536-1052 (TTY: 711)
EssenceHealthcare.com

Medicare
Helpline: 1-800-MEDICARE (TTY: 1-877-486-2048)
24 hours a day, seven days a week
Medicare.gov

Social Security Administration
Toll-free: 1-800-772-1213 (TTY: 1-800-325-0778)
8 a.m. to 7 p.m., Monday through Friday
SSA.gov

State Health Insurance Assistance Program (SHIP)
ShipHelp.org
Use the SHIP locator to find the contact information for your state.

Railroad Retirement Board
Toll-free: 1-877-772-5772 (TTY: 1-312-751-4701)
9 a.m. to 3 p.m., Monday through Friday
RRB.gov

Low-Income Subsidy (LIS)
Extra Help with prescription drug costs
SSA.gov/Medicare/Part-D-Extra-Help

This article explains eligibility and the specific details of Medicare Part A and Part B coverage. It also has additional resources to help with your research.

Original Medicare (Parts A and B) doesn’t pay for long-term care like nursing homes, or for regular dental visits, glasses, or hearing aids.

You can buy extra insurance to cover long-term care or other health services not covered by Original Medicare.

Medicare Advantage plans (Part C), often include coverage for dental, vision, hearing, fitness and more.

A deductible is the amount you pay for covered health-related services (doctor visits and prescriptions) before your insurance plan starts to pay.

The maximum out-of-pocket (MOOP) amount/limit is the most you have to pay for covered health-related services in a plan year. Once you hit the limit, your health insurance plan will pay for everything the remainder of the year.


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